Trouble Validating a nested list

Hi,

I'm a beginner with HTML, and I have found the validator and the W3C 
pages very helpful in getting me started. However, I am confused by the 
error message I get when trying to validate the following page:

http://www3.sympatico.ca/tyler006/phdprop.html

1. Error Line 42 column 17: document type does not allow element "OL" 
here; assuming missing "LI" start-tag.

 <ol class="lwrA">

2. Error Line 49 column 16: document type does not allow element "OL" 
here; assuming missing "LI" start-tag.

<ol class="lwrA">

The error message suggests that my nested <ol> are not allowed, and 
should be replaced by a <li>. From the context of the page this is 
clearly not what I want. I can, however, pass the validation when I 
remove the </li> tags immediately preceeding each nested <ol> (ie. at 
line 41 or 48).

I thought that </li> tags were optional, but that good practice was to 
include them so as to make my eventual conversion to XHTML smoother. In 
this case the validator results indicate that they are not a good idea. 
Could someone clarify this for me?

Thanks for your time, and my apologies if I've sent this to the wrong list!

Tyler

Received on Sunday, 30 October 2005 22:35:04 UTC